Home / 103,404.38-155,107.23-56,631.74

Finding the Fourth Proportional to 103,404.38, 155,107.23 and 56,631.74

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Solution

The fourth proportional to 103,404.38, 155,107.23 and 56,631.74 is: 84,947.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,404.38 : 155,107.23 = 56,631.74 : x
  2. Step 2: Convert to fraction form
    103,404.38/155,107.23 = 56,631.74/x
  3. Step 3: Cross multiply
    103,404.38x = 155,107.23 × 56,631.74
  4. Step 4: Simplify right side
    103,404.38x = 8,783,992,321.48
  5. Step 5: Solve for x
    x = 8,783,992,321.48/103,404.38
  6. Step 6: Final answer
    x = 84,947.97

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.